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प्रश्न
Fill in the boxe to show the corresponding energy transformation.
रिक्त स्थान भरें
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उत्तर
Chemical energy ⇌ Electrical energy
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संबंधित प्रश्न
Define 1 J of work.
A girl weighing 400 N climbs a vertical ladder. If the value of g be 10 m s−2, the work by her after climbing 2 m will be :
Name the physical quantity whose SI unit is Nm.
What are the quantities on which the work done depends?
Can a body possess zero kinetic energy?
A moving object of mass 30 kg has 60 J of kinetic energy. What is its speed?
What change should be effected in the velocity of a body to maintain the same K.E., if its mass is increased four times?
What is the amount of energy spent in lifting 1 kg through 1 m? Take g = 10 ms-2.
An object is dropped from a height H. when is its
(i) P.E. maximum,
(ii) K.E. maximum,
(iii) P.E. = K.E.?
A uniform chain of length 2 m is kept on a table such that a length of 60 cm hangs freely from the edge of the table. The total mass of the chain is 4 kg. What is the work done in pulling the entire chain on the table?
